Nitinol Shape Memory Alloy Sheet
Thickness: 0.5 mm | Activation Temperature (Af): 35–40°C
Nitinol is a nickel-titanium shape memory alloy that undergoes a phase transformation in its crystal structure depending on temperature changes. When cooled from its high-temperature austenite phase to the low-temperature martensite phase, it can change shape. This unique property enables Nitinol to “remember” and return to its original form when heated above its activation temperature.
Applications
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Thermal and Electrical Actuators: Used in sensors, actuators for thermal valves in fluidic systems, and autofocus mechanisms in action cameras.
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Biomedical Devices: Highly biocompatible, suitable for orthopedic implants, catheters, orthodontic brackets and wires, and neurovascular interventions such as stroke thrombolysis.
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Stents: Nitinol stents can be collapsed for insertion into arteries or veins, then expand at body temperature to restore blood flow.
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Structural Engineering: Superelastic Nitinol wires embedded in concrete can detect and indicate cracks, providing early warnings in bridges and building structures.
Nitinol’s combination of shape memory, superelasticity, and biocompatibility makes it a versatile material across medical, mechanical, and structural engineering fields.
